established in 1974 - sustainability exchange...max temperatures (%) >25 oc >28oc >32 c...
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1974Established in
Alderman Knight SchoolCase Study: Cool-phase® Award Winning System
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Audit of PerformanceAlderman Knight School
Location: Tewkesbury, Gloucestershire
Contacts: National Design Consultancy
Consultancy
Mechanical Installation Heating Services (Glos) Ltd
Contractor
Matt Peplow Business & Operations ManagerSystems: Sports Hall 2No Windcatcher® X-Air 170
Meeting Room and Library 2No ABS 350 Circular Windcatcher® SystemsSensory Room and Small Office
2No ABS 350 Circular Windcatcher® Systems
ICT Room 1No Cool-phase® Suspended CeilingSector: Education
Alderman Knight School - Tewkesbury, Gloucestershire
Sports Hall - WINDCATCHER systems
ICT Room - COOL-PHASE Suspended ceiling system
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ICT RoomCOOL-PHASE Suspended Ceiling
One new COOL-PHASE unit has been installed in the ICT Room at Alderman Knight School to provide natural cooling within the area, the data below shows the performance achieved from the system as an average.
Internal Temperature Results
This data was collected from the unit installed between 7th June 2012 and 30th March 2015. This table shows the overall average daily temperatures for each year.
CO2 Levels
Background or atmospheric CO2 level is approximately 400 parts per million (ppm) and 1500 ppm or above would be considered a high level.
Energy Consumption
Daily Temperatures (oC)Average Min Average Max Average
07/06/12 - 31/05/13 21.8 oC 19.6 oC 23.2 oC31/05/13 - 24/03/14 20.7 oC 18.4 oC 22.1 oC24/03/14 - 30/03/15 20.8 oC 18.6 oC 22.1 oC
CO2 Levels>1000 ppm >1200 ppm >1500 ppm
07/06/12 - 31/05/13 3% 0.5% 0%31/05/13 - 24/03/14 5.1% 0.7% 0%24/03/14 - 30/03/15 4.5% 0.6% 0%
Max Temperatures (%)>25oC >28oC >32oC
07/06/12 - 31/05/13 7.3% 0.5% 0%31/05/13 - 24/03/14 0.4% 0% 0%24/03/14 - 30/03/15 0% 0% 0%
This table shows the percentage of time that the internal temperature has spent at over 25°C, 28°C and 32°C during the logged period.
ICT Room - COOL-PHASE Suspended ceiling system
External Louvre
Cool-phase Diffuser
COOL-PHASE Suspended ceiling system
Energy Use over the total installed period: 147 weeks (2 Years 10 months)
Total Energy Usage since install (based on £0.11 per
KWh)440.9 KWh £48.50 total 33p per week 5p per day Approx. £17 year
COOL-PHASE is an award winning (CIBSE and Ashden Awards), low energy cooling and ventilation system that creates a comfortable, fresh and healthy indoor environment that can significantly reduce the running costs of buildings.
What is COOL-PHASE?
“ Throughout our school there were very few rooms that suffered with no ventilation. All of our classrooms either have openable north lights or external doors. However we did have an ICT Suite, an Office and a Meeting Room with no external windows so we decided to utilise the Monodraught WINDCATCHER and COOL-PHASE systems within these spaces. The COOL-PHASE system that we have in the ICT Suite manages the temperature of the room very well and whilst you may lose an element of control that you get with Air-Conditioning, you are reducing the energy consumption that you are using to cool the space. We also had some WINDCATCHER systems installed in the Main Hall which is very useful when the Hall is packed up over a period of time. It makes a big difference in terms of the levels of C02 and quality of the air. ”Matt Peplow - Business & Operations
Manager Alderman Knight School
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Sports Hall - WINDCATCHER systems
Alderman Knight School - Meeting Room - WINDCATCHER system
What is WINDCATCHER?Windcatcher® X-Air
The Monodraught WINDCATCHER X-Air is the latest generation of Natural Ventilation that follows in the footsteps of the successful Windcatcher Classic systems. Windcatcher Classic is an energy free Natural Ventilation system encompassing the benefits of both top-down and passive stack ventilation. The simple, but effective design of the system provides fresh air during the daytime as well as night-time cooling.
Due to the flexibility of the Windcatcher, the system can be tailored to suit the needs of almost any area. The systems technological ability has been proven within schools, colleges, healthcare environments, commercial properties, as well as many other areas.
The main advantages Monodraught systems have over other forms of Natural Ventilation are:• It doesn’t matter which way the wind blows, the louvres on one side will always entrain the prevailing wind and turn that air movement down through 90°.• WINDCATCHER X-Air natural ventilation systems will not leak for 10 years from the date of commissioning. Monodraught backs up this promise with a full 10 -year product guarantee. • ACTIVLOUVRE® modulating louvre technology allows the weather resistance of the external louvre blade to be increased dependent on weather conditions and even closed at roof level to prevent snow being blown through an open louvre arrangement.• ACTIVLOUVRE uses a weather resistant double step louvre profile whilst providing 25% greater levels of ventilation than a conventional Classic louvre profile.• Computer generated design of profiled internal rain trap louvre is fitted as standard.
How does COOL-PHASE work?COOL-PHASE uses a thermal energy store which utilises a Phase Change Material (PCM) combined with an intelligently controlled Air Handling Unit to actively ventilate and cool the building. The COOL-PHASE system can maintain temperatures within a comfort able zone, while radically reducing energy consumption by up to 90% compared with a conventional cooling system.
Want to know more?Find out how Monodraught systems can help you achieve healthier, cost-effective and more productive environments
Contact us: 01494 89 77 00 http://www.monodraught.com/contact-us/
Total Cooling Free Cooling(Ventilation)
Night time Cooling(Building + flush)
Thermal Batteries(Energy stored)= + +
Architectural Lighting Fin
Weathering Skirt
Motorised Volume Control Dampers
Grille Arrangement
Insulated Structural Composite
Upstand, Supplied by Monodraught
for Fitting and Weathering to Roof
by Others
Note: Upstand to protrude 150mm above finished roof level
ACTIVLOUVRE Assembly
Swept Internal Divider
Linear Actuator
Solar Panel
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Halifax House, High WycombeBuckinghamshire, HP12 3SE
+44 01494 897700
+44 01494 532465
www.monodraught.comwww.cool-phase.net
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Monodraught products are designed and manufactured in Great Britain
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